- "Kyril's father and Andarc and Seneca's boss. Under Walter's guidance, the group travels throughout the Island Nations hoping to uncover some kind of strange mystery."
- —Instruction Manual for Suikoden Tactics
Walter introduces the plot and characters of Suikoden Tactics. The game begins with his journey to seek out the adverse effect of the Rune Cannons on humans. He travels with his son Kyril, Seneca, Andarc, and the demi-human Yohn.
Walter is informed that Lord Reinbach II has been installing the rune cannons on various ships. Though he is turned away by Sigurd, he receives a tip from Hervey that the infamous pirate Steele has some.
During a night raid of ship, he is shot by a rune cannon at point blank range, transforming him into a horrifying sea monster. No longer able to think for himself, he attacks his son in a frenzy. In the attempt to save Kyril's life, Andarc is forced to slay Kyril's father.